The Pros And Cons Of Plastic Injection Molding

I received a telephone call one day(some years ago when tractor feed paper was the norm for computers) from a gentleman who we shall call “Mr. Andrews”. A friend of his had given him my name, telling him I would give him advice about what to do with his invention.

Being former Chicago residents, my husband and I also love the fact that Gatorland is home to two Mold-A-Rama machines. These China Plastic Molding Design souvenir makers were (and perhaps still are) a staple at Chicago’s Museum of Science and Industry and Brookfield Zoo. You pop in $2 and the machine injection molds one of two plastic figures (a gator or a gator and wrestler) right before your very eyes. A minute or so later, it drops into the chute and you have a cheap and distinctive souvenir. Whenever I catch a whiff of that melted plastic smell, I’m instantly transported back to childhood outings.

I want a head that passes all four tests without compromise. Fortunately, that is very doable these days. Never before have we had the excellent broadhead selection that we have today. The tradeoffs are gone. We can have it all now.

It was only then that he explained to me about the conduits and the sealing against water problem he was having. Remember, he originally asked me to develop a nozzle that mixed the foam better… he did not mention anything about leaking conduits.

In addition, contact lens can be made through a process which is called as the spin casting. It uses mold which is filled with the liquid monomer. Monomers are popularly known as the tiny molecules with different characteristics so that they can be combined in various ways for making polymers. To create the lens, the monomer is polymerized through the rotating mold. Different speed of the mold’s rotation can result different quality. In this process, the lens can be through some finishing process including polishing, check, sterilization and packaging.

These little log sets have been found all over the world. There is a high probability that you had a set and if you did not, then someone among your friends did. There have been over 100 million sets sold. The fun thing about these little logs is they will fit together with ease and create as many structures as you can imagine. These toys are also a great way for small children to develop their fine motor skills. They were so popular that they were inducted into the National Toy Hall of Fame in 1999. As stated earlier, the set comes with instructions. This allows the children to work together to achieve the goal of building the structures by following simple visual instructions. This allows for experiences that will foster skills to be used later in life.

We were feeling pretty good. We developed attractive packaging in cardboard boxes covered with photos of assembled projects. We had packages of either red clips or yellow clips. A dozen of the packages fit into a shipper. The shipper was designed to fold into a point-of-purchase display case.

Instead, contact lens can be made through an injection molding process. It involves a mold which is made of two halves. Those halves are put together. Then, the polymer of the lens is injected into that mold under pressure. Then, the mold is removed and cooled. For the last step, the lenses are polished, checked, sterilized and then packaged.

The Pros And Cons Of Plastic Injection Molding February 1st, 2019Natalie Moore